Calendering-machine.



Lf. MERCE. CALENDEHING MACHINE.

APPLICATION FILED MAR.30. i917.

Patented Apr. 22, 1919.

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LRP-1ERE@ CALENDERING MACHINE.

APPLlcAnoN FILED MAH. so, |911.

LBULQSM Patented Apr. 22,1919.

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JAMES F. PIERCE, OF GLYNRICH, DELAWARE, ASSIGNOR T0 AMERICAN V''LCANIZED FIBRE CO., 0F WILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.

CALENDERING-MACHINE.

ascisse.

T0 all 'whom t may concern.

Be it known that I, JAMES F. PIERCE, of

Glynrich, in the county of New Castle andl State of Delaware, have invented certain new and useful Improvements in Calendering-Machines, whereof the following is a specification, reference being had to the accompanying drawings.

The invention relates more particularly to a machine for calendering seamless receptacles, such as large tubes, which may be of fiber or the like.

An object of the invention is to provide a machine of the above charac-ter which is provided'with rolls for rolling the inside and outside of a tube or receptacle whereby it may be given a hard smooth finish both on the inner and outer surfaces thereof.

A further object of the invention is to provide a machine of the above character with means coperating withthe rolls for supporting the tube while the same is being operated upon. 1

A still further object of the invention is to provide a .machine of the above character wherein the axis of the rolling means is set in a plane cutting the axis of the tube or material being treated at an angle so that the tube is fed endwise between the rolls as it is being operated upon, and also to provide means for automatically shifting the angle of the rolling means for causing the tube to be fed in the opposite direction.

These and other objects will in part be obvious, and will in part be hereinafter more fully disclosed.

In the drawings, which show by way of illustration one embodiment of the invention, Figure I, is a view in side elevation of a machine embodying the improvements, the receptacle operated upon being in section.

Fig. II, is a front view of the machine.

Fig. III, is a detail sectional view, on the line III-III of Fig. I.

Fig. IV, is an enlarged vertical sectional view through the end of the machine, said section being lengthwise of the supporting arm, and

Fig. V, is a sectional view on the line V-V of Fig. IV.

The invention consists primarily of a supporting frame having a projecting work supporting arm which carries a roll mounted on a shaft which is positively rotated. Above the work supporting arm is an overhanging Specicaton of Letters Patent.

Patented Apr.. 22, 1919.

Serial No. 158,765.

arm 'which also carries a roll adapted to cooperate with said irst-na1ned roll, and this second roll is mounted in bearings carried by a bracket which is adjustable vertically so thatV the pressure between the two rolls may be varied.

The machine is especially adapted for operation upon a fiber receptacle which is preferably seamless and in the form of a tube or cylinder. This tube is placed over the work supporting arm, and the lower roll engages the inner face of the tube, while the upper roll engages the outer face thereof. A supporting means is provided for holding the tube as it is operated upon by the rolls. The upper roll is preferably set withits axis at an angle to the axis of the .lower roll and the axis of the tube, so that,

as ythe tube is rolled, it is caused to travel lengthwise between the rolls. The bearing for the upper roll is oscillated by a spring about a vertical axis for changing the angular position of the roll. It is held against the tension of the spring by a stop which may be automatically released by the tube being operated upon. This permits the tube to 'travel endwise between the rolls a predetermined distance, after which the stop is tripped and the roll automatically shifted, causing the tube to be fed endwise in the opposite direction.

Referring more in detail to the drawings, the improved calendering machine consists of a standard 1, carried by a supporting base 2. Mounted on this standard is a work supporting arm 3. Extending lengthwise of the-work supporting arm is a driving shaft 4, which is journaled in a suitable bearing 5, at the end of the work supporting arm 3, and a bearing 6, in the standard l. This shaft may be yrotated by a suitable belt wheel 7 Mounted on the end of shaft 4, and at the end of the work supporting arm is a roll 8, which is held on the shaftby a. nut 9. ASaid roll is keyed to the shaft by a spline 10.

Also mounted on standard 1, is an overhanging arm 11, carrying a supporting head 12, at the free end thereof. Mounted in supporting` head 12, is a bracket 13, in which is journaled a roll 14. This bracket 13, is formed with a supporting shank 15, which extends up into supporting head 1Q. Said shank is formed with a central bore 16. which is threaded -to receive threaded end 17, of av shaft 18. Shaft 18, is provided with a hand wheel 19, and with a limitingcollar 20. Between collar 20, and hand wheel 19, is a cap plate 21, which is secured to the supporting head 12, by bolts 22. This threaded shaft 18, supports bracket 13, and by turning hand wheel 19, said bracket may be moved vertically so as to force roll 14, toward the i'oll 8, or move said roll 14, away from roll 8. By means of hand wheel 19, any desired pressure may be obtained between the rolls. Shank 15, may be freely oscillated in supporting head 12, shaft 18, truning in cap plate 21, to permit this oscillation.

IAttached to bracket 13, is a handle 23. A spring 24, attached at one end to handle 23, and at its other end to lug 25, on the overhanging arm 11, normally tends to turn shank 15, in a counterclockwise direction. The movement of bracket 13, and its supporting shank is limited by stop 26, which engages recess 27, in the bracket 13. This stop is in the form of a rod mounted to slide lengthwise in supporting lugs 29, and 30, carried by the over-hanging arm 11. A. spring 31, bearing against one of the lugs and against a collar 32, on the rod forming the stop, moves said stop 26, toward the bracket 13. Link 33, .is connected to the outer end of this stop, and the other end of link 33, is pivoted to a depending arm 34, which in tuiii is pivoted at 35, to the overhanging arm 11. Bracket 13, is also provided with a projecting pin 28, Whose function will be hereinafter described.

Mounted on work supporting arm 3, is a bracket 36, which is secured thereto by suitable bolts 37. This bracket extends underneath roll 8, and projects to a point in front thereof, where it is provided with a vertically extending head 38. Mounted to slide on head38, is a plate 39, which carries a hori zontally projecting rod 40. Mounted on rod 40, is a pair of supporting wheels 41. These wheels are located between suitable collars 50, which hold them on rod 40, but permit them to turn freely thereon. Plate 39, is formed with a series of openings 42, and bolts 43, passing through these openings into suitable openings 44, in head 38, serve as a means whereby rod 40, may be adjusted vertically and held in different adjusted positions, so that the top of wheels 41, which support the material being operated upon may be on a level with the top of roll 8, and maintain the material at that level.

In Fig. I, of thel drawings, a tube R, is shown in section, and the machine is adjusted for operation uponthis tube. It is placed over supporting wheels 41, which are smallerI in diameter than the tube and the wall of' the tube is inserted between pressure rolls 8, and' 14. Roll 8, is positively rotated, as above noted, and roll 14, is set with its axis in a plane at an angle to the axis of roll 8, and also the longitudinal axis of the tubeV R. Hand wheel 19, is turned until the proper pressure is brought to bear on the material of the' tube. is shaft 4, rotates the material passes between the rolls which roll both the inside and outside of the tube, thus giving a hard smooth finish thereto. Furthermore, by`

regulating the pressure between the rolls, the wall of the tube may be rolled to any desired thickness.

By setting roll 14, at an inclination, as above described, the tube is caused to move endwise between the rolls. When the end of the tube strikes arm 34, it is moved to thev left, as viewed in Fig. l, and this withdraws the stop 26, from recess 27, so that spring'24, at once shifts roll 14, until projecting pin 28, engages lug 30. Theinclinatioii of'tlie axis of roll 14, has now been reversed, andthe continued rotation of roll 8, causes Vthe tube to travel in the other direction end-'wise through the rolls. 1t will' thus'be seen that while the tube is at first fed in one direction, yetV whenV a predetermined point hasV been reached, the machine reverses at once and the tube is then fediii they opposite direction.

It will be understood th atthe machine may be used in connection with receptacles of any desired character or for Vthe calendering of' tubes or other similarly shaped objects. It is also obvious that minor changes in the de'- tails of construction and the arrangement of parts may be made without departing from the spirit of the invention as set forth in the appended claims.

Having thus described my invention, I claim:

1. In a calendering machine the combination of a support, a roll, means disposed? at one end of the roll for supportingthe same whereby a tubular article tobecalendered means for adjusting the distance between-the rolls, and means for changing the angular` position of the axis of rotation of the second mentioned roll relative to said first mentioned roll. l Y

3. A calendering machine including in combination, a standard, a work supporting arm thereon, a roll carriedV by said' workl supporting arm at the free endl thereof whereby a tube to be calendered may beA placed over said roll, means for rotating said roll, a second roll cooperating with the roll carried by the work Supporting arm, means for supporting said second roll, means for adjusting sald second roll toward and from said first named roll, whereby the pressure of the rolls on the material passing between the same may be varied and means for changing the angular position of the axis of rotation of the second mentioned roll relative to said firstY mentioned roll.

4. A calendering machine including in combination, a standard, a work supporting arm thereon, a roll carried by said work supporting arm, means for rotating said roll, an overhanging arm carried by the standard, a supporting head at the outer end of said overhanging arm, a bracket carried by said supporting head, a roll carried by said bracket and adapted to coperate with the roll carried by the work supporting arm, and means for adjusting the bracket vertically in said supporting head.

5. A calendering machine including 1n combination, a standard, a work supporting arm thereon, a roll carried by said work supporting arm, means for rotating said roll, an overhanging arm carried by the standard, a supporting head at the outer end of Said cverhanging arm, a bracket carried by sald supporting head, a roll carried by saidv bracket and adapted to coperate with the roll carried by the work supporting arm, means for adjusting the bracket vertically in said work supporting head, and means coperating with the rolls for supporting the material being operated upon by the rolls.

6. In a calendering machine the combination of a support, a roll, means carried by the support and disposed at one end of the roll for supporting the same whereby a tubular article to be calendered may be placed over the roll, means for rotating said roll, a second roll mounted to rotate freely and adapted to cofperate with the first mentioned roll, means for adjusting the distance between the rolls and adjustable means for supporting the material being operated upon whereby said material may be maintained level with the top of the rst mentioned roll, and means :tor changing the angular position of the axis of rotation of the second mentioned roll relative to said irst mentioned roll.

7. A calendering machine including in combination, a standard, a work supporting arm thereon, a roll carried by said work supporting arm, means `for rotating said roll, an overhanging arm carried by the standard, a supporting head at the outer end of said overhanging arm, a bracket car ried by said 'supporting head, a roll carried by said bracket and adapted to cooperate with the roll carried by the work supporting arm, means for adjusting the bracket vertically in said work supporting head, a bracket carried by the work supporting arm, a rod adjustably mounted on said bracket, and supporting wheels freely journaled on said rod and adapted to support a cylinder of material operated upon by said rolls.

8. In a calendering machine, the combination of a support, a roll, means carried by the' support and disposed at one end of said roll for supporting the same whereby a tubular article to be calendered may be placed over the roll, means for rotating said roll, a second roll mounted to rotate freely and adapted to coperate with said first mentioned roll, means for adjusting the distance between the rolls, means for adjusting the second mentioned roll so that its axis of rotation is inclined at an angle with the axis of rotation of the rst mentioned roll.

9. A calendering machine including in combination a standard, a work supporting arm, a roll mounted at the free end of said work supporting arm whereby a tubular article to be calendered may be placed over the roll, means for rotating said roll, an overhanging arm carried by said standard, a supporting head at the outer end of said supporting arm, a bracket journaled in said supporting head to turn about a Vertical axis, a roll j ournaled in said bracket to turn about a horizontal axis and cooperating with a roll carried by the work supporting arm and means for shifting said bracket whereby the axis of the roll carried thereby may be set at an inclination to the axis of the roll carried by the work supporting arm.

10. In a calendering machine, the combination of a support, a roll mounted on said support, means for'. rotating said roll, a

second roll mounted to rotate Jfreely and adapted to coperate with said first mentioned roll, means for adjusting the distance between the rolls, means for adjusting the second mentioned roll, so that its axis of rotation is inclined at an angle to the axis of rotation of the first mentioned roll, and means whereby the angle of inclination be tween the axes of rotation of the two rolls is reversed during the process of calendering.

11. In a calendering machine, the combination of a support, a roll mounted on said support, means for rotating said roll, a second roll mounted to rotate freely and adapted to coperate with said first mentioned roll, means for adjusting the distance between the rolls, means for adjusting the second mentioned roll, so that its axis of rotation is inclined at an angle to the axis of rotation of the first mentioned roll, whereby the material bein calendered is progressed lengthwise of t e axis of said irst mentioned roll, and means whereby the angle of inclination between the two rolls is reversed by the material when it has proarm thereon, a roll carried b y said Work supporting arm, means for rotating said roll, an overhanging arm carried by said standard, a supporting head at' the outer end of said overhanging arm, a bracket journaled in said supporting head' to turn about a vertical axle, a roll journaled in said bracket to turn about a horizontal axisand cooperating With the roll carried by the Work supporting arm, a handle attached to said bracket for shifting the bracketabout its vertical axis, a spring' attached to said bracket and normally turning said bracket in'one direction, a stop for limiting the movement of the bracket under the action of the spring, and means whereby the material may release the stop so that the angle of inclination of the roll carried by the overhang-ing arm may be reversed for feeding the material operated upon in the opposite direction.

In testimony whereof, I have hereunto signed my naine at Philadelphia, Pennsylvania, thisV nineteenth day of March 1917. JAMES F. PIERCE. Witnesses:

WILLIAM EVES, 3rd., JAMES H. BELL.

Copies of this patenti may be'obtaned for ve centseach',Y by addressingthe Commissioner of Patents Washington, D. C. l 

